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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5246553
Kind Code:
Y2
Application Number:
JP14846672U
Publication Date:
October 22, 1977
Filing Date:
December 28, 1972
Export Citation:
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International Classes:
B42F17/34; B42F19/00; G06K21/00; G06K21/02; (IPC1-7): G06K21/02